13851734887 has 2 divisors, whose sum is σ = 13851734888. Its totient is φ = 13851734886.

The previous prime is 13851734791. The next prime is 13851734893. The reversal of 13851734887 is 78843715831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13851734887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13851734287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6925867443 + 6925867444.

It is an arithmetic number, because the mean of its divisors is an integer number (6925867444).

Almost surely, 2^13851734887 is an apocalyptic number.

13851734887 is a deficient number, since it is larger than the sum of its proper divisors (1).

13851734887 is an equidigital number, since it uses as much as digits as its factorization.

13851734887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 55.

The spelling of 13851734887 in words is "thirteen billion, eight hundred fifty-one million, seven hundred thirty-four thousand, eight hundred eighty-seven".